Title :
Wideband mm-wave log-periodic antennas
Author :
Mruk, Joseph ; Hongyu, Zhou ; Uhm, Manseok ; Saito, Yuya ; Filipovic, Dejan
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Colorado, Boulder, CO
Abstract :
Wideband mm-wave end-fire and planar log-periodic antennas compatible with a recently developed surface micromachined process known as PolyStratatrade are discussed in this paper. Two embodiments of each log-periodic type are developed. Specifically, an instantaneous 2-110 GHz and a dual-band 18-50 GHz and 75-110 GHz planar log-periodic antennas with integrated rectangular micro-coaxial feeds/impedance transformers and VSWR < 2.5:1 are designed. An instantaneous 18-110 GHz and a dual-band 18-50 GHz and 75-110 GHz end-fire log-periodic dipole antennas with VSWR < 1.5:1 are also demonstrated. The antennas and integrated feeds are modelled using a finite element code HFSS and are verified with a method of moments code FEKO or a finite integration code CST.
Keywords :
UHF antennas; broadband antennas; dipole antenna arrays; finite element analysis; log periodic antennas; method of moments; microwave antenna arrays; millimetre wave antenna arrays; planar antenna arrays; CST; FEKO; HFSS; PolyStrata; dipole antennas; end-fire log-periodic antennas; finite element code; finite integration code; frequency 18 GHz to 110 GHz; frequency 18 GHz to 50 GHz; frequency 2 GHz to 110 GHz; frequency 75 GHz to 110 GHz; impedance transformers; method of moments code; planar log-periodic antennas; rectangular micro-coaxial feeds; surface micromachined process; wideband mm-wave log-periodic antennas; Antenna feeds; Broadband antennas; Dipole antennas; Dual band; Finite element methods; Log periodic antennas; Log-periodic dipole antennas; Moment methods; Surface impedance; Transformers;
Conference_Titel :
Antennas and Propagation, 2009. EuCAP 2009. 3rd European Conference on
Conference_Location :
Berlin
Print_ISBN :
978-1-4244-4753-4
Electronic_ISBN :
978-3-00-024573-2
